Outline
The TCM controls engine output torque and reduces transaxle output shaft torque fluctuation during auto shifting, and reduces shock occurring from the vehicle during shifting.
Construction
Operation
During auto shifting, the TCM sends the torque reduction request signal using the CAN system and temporarily reduces the engine output torque by the engine ignition timing retard control. As a result, transaxle output shaft torque fluctuation is reduced during auto shifting by smooth engagement of the clutch.
In addition, the TCM receives the engine output torque from the PCM via the CAN signal to determine the clutch engagement pressure according to the engine output torque. As a result, the clutch hydraulic control setting accuracy is increased and smooth shift performance is achieved.
Selector Lever Inspection
1. Switch the ignition ON (engine off or on).
2. Perform the following procedures to inspect the selector lever.
If there is any malfunction, adjust the selector cable..
a. Verify that the selector lever can be operated as shown in the figure.
b. Verify that the selector lever ...
Positive Crankcase Ventilation (PCV) System
Purpose, Outline
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The intake manifold vacuum introduces blow-by gas to the intake manifold
via the PCV valve and the ventilation hose.
System Diagram
Structure
The positive crankcase ventilation sys ...
Electronic Stabilization
Control
Description
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves driving stability. ESC detects critical situations,
such as if the vehicle is oversteering or
understeering, or if the wheels are spinning.
The brakes are applied or the motor t ...